The motion of centre of mass of a system of two particles is unaffected by their internal forces

The motion of centre of mass of a system of two particles is unaffecte

1.	The motion of centre of mass of a system of two particles is unaffected by their internal forces
Answer» IRRESPECTIVE of the actual directions of the internal forces only if they are ALONG the LINE joining the particles only if acts PERPENDICULAR to each othe only if acting opposite Answer :A